I'm getting a little confused about adding canonical tags to pages. Some (most?) guides suggest using a link tag thusly:
<link rel="canonical" href="www.example.com/somepage" />
but some others suggest a meta tag like so:
<meta rel="canonical" href="www.example.com/somepage" />
Are both allowed? Which is right? If one is wrong, where does the confusion stem from?
Thanks.